Hi Kyrylo, have you tried to use windows version of kms with recording video to file (as it is made in one of tutorials)?
(kurento-media-server.exe:7296): GLib-GObject-WARNING **: g_object_set_valist: object class 'GstAppSrc' has no property named '\u0002'
(kurento-media-server.exe:7296): GLib-GObject-WARNING **: g_object_set_valist: object class 'GstAppSrc' has no property named '\u0002'
(kurento-media-server.exe:7296): GLib-GObject-WARNING **: g_object_set_valist: object class 'GstAppSrc' has no property named '\u0003'
(kurento-media-server.exe:7296): GLib-GObject-WARNING **: g_object_set_valist: object class 'GstAppSrc' has no property named '\u0003'
and I do not know if this is still not working part or I have made something wrong...